– Lat/Long: 48.71° N 121.99° W
South Twin Sister Weather Forecast
Cascade Range · United StatesIssued: 9 pm Fri 06 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 9 pm Fri 06 Nov Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryHeavy rain (total 33mm), heaviest during Sat night. Very mild (max 13°C on Sat morning, min 4°C on Sun night). Winds increasing (calm on Fri night, fresh winds from the S by Sat night). | Days 5–7 Weather SummaryHeavy rain (total 44mm), heaviest during Tue night. Very mild (max 17°C on Wed morning, min 6°C on Mon night). Wind will be generally light. | |||||||||||||||
Saturday 7 | Sunday 8 | Monday 9 | Tuesday 10 | Wednesday 11 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  | | | |  | | |  | | | | |  | |
rain shwrs | light rain | light rain | heavy rain | light rain | light rain | rain shwrs | some clouds | light rain | heavy rain | rain shwrs | light rain | rain shwrs | some clouds | some clouds | some clouds | |
Cloud base (m) | 650 | 2800 | 2150 | 550 | 650 | 700 | 900 | 5700 | 1750 | 600 | 600 | 650 | 600 | 1000 | 6550 | 6800 |
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 6 | 0.1 | 0.2 | 17 | 5 | 3 | 0.2 | — | 0.6 | 17 | 7 | 0.3 | 20 | — | — | — |
max °C | 9 | 13 | 12 | 11 | 7 | 6 | 5 | 8 | 7 | 10 | 11 | 10 | 12 | 17 | 15 | 13 |
min °C | 8 | 11 | 12 | 6 | 6 | 6 | 4 | 7 | 6 | 6 | 10 | 10 | 11 | 15 | 14 | 13 |
chill °C | 7 | 10 | 10 | 2 | 3 | 6 | 3 | 6 | 4 | 4 | 9 | 9 | 10 | 15 | 14 | 12 |
Freezing level m | 2200 | 2850 | 2750 | 1650 | 1450 | 1400 | 1450 | 1750 | 1600 | 2250 | 2150 | 2600 | 2900 | 3100 | 3300 | 3350 |
 | — | 7:03 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — |
 | — | — | 4:37 | — | — | 4:36 | — | — | 4:35 | — | — | 4:34 | — | — | 4:31 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Heavy rain (total 33mm), heaviest during Sat night. Very mild (max 13°C on Sat morning, min 4°C on Sun night). Winds increasing (calm on Fri night, fresh winds from the S by Sat night).
South Twin Sister Weather (Days 3-6):
Heavy rain (total 44mm), heaviest during Tue night. Very mild (max 17°C on Wed morning, min 6°C on Mon night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table.For a wider overview of the weather, consult the Weather Map of Washington.